Centrifugal separator.



No. 642,288. Patented Ian. 30, I900.

J. J. BERRIGAN.

GENTRIFUGAL SEPARATOR.

(Application filed Oct. 16, 1895. Renewed Sept. 30, 1898.)

(No Model.) 2 Sheets-Sheet I "mi New PETERS co, FMDTD-UTHO,WASHINGTON a. c.

N0. $42,288. Patented Jan. 30,1900. J. J. BERRIGAN.

CENTRIFUGAL SEPARATOR.

(Application filed Oct. 16, 1895. Renewed Sept. 30, 1898.)

(No Model.)

w: Mamas virus so. wmouma, wxsuwamwu. r.

iTnn STATES PATrNT OFFICE.

JOHN J. BERRIGAN, OF AVON, NEYV YORK, ASSIGNOR TO THE DE LAVAl] SEPARATOR COMPANY, OF NEW JERSEY.

CENTRIFUGAL SEPARATOR.

SPECIFICATION forming part of Letters Patent No. 642,288, dated January 30, 1900.

Application filed October 16,1895. Renewed September 30,1898. Serial No. 692,349. (No model.)

To all whom it may concern:

Be it known that 1, JOHN J. BERRIGAN, a citizen of the United States, residing at Avon, in the county of Livingston, in the State of New York, have invented certain Improvements in Centrifugal Separators, of which the following is a specification, reference being had to the accompanying drawings.

My invention relates to certain improve ments in the construction of centrifugal separators, which improvements are fully described and illustrated in the following specification and the accompanying drawings, the novel features thereof being specified in the claims annexed to the said specification.

My improvements in centrifugal separators are represented in the accompanying drawings, in which- Figure 1 is a front elevation. side elevation. Fig. 3 is a plan View of the upper bearing. Fig. 4 is a longitudinal sec tion of one of the adjustable bearing-points. Fig. 5 is a partial elevation and partial section of the revolving bowl and the receivingpan. Fig. (3 represents the inner independent bowl detached. Fig. 7 is a plan view of the receiving-pan. Fig. 8 is a plan View of the inner independent bowl. Fig. 9 is a plan view of the base of the revolving bowl.

In the accompanying drawings, A represents the revolving bowl, B O a suitable supporting-framework, and D the handle, by which the bowl is operated.

II is the tank, and Gthe receiving-pan, from which the separated liquids are discharged through the pipes J and K into any suitable receptacles.

My improved centrifugal separator is designed to separate cream from milk; but it may be used for other purposes. It may be made of any suitable size, and power may be applied to operate it. The base-plate L is supported by any suitable legs or frame B, and from the base rises the standard C, which carries the yielding bearing 1, arranged to support the journal d on the upper end of the bowl. The gearing by which the bowl is revolved is conveniently arranged as shown in the accompanying drawings, in which the gear M drives the pinion N, and the shaft of this pinion carries a wor1n-gear s, Fig. 1,

Fig. 2 is a which engages with a worm t on the upright shaft it, which revolves the bowl. The handle D is connected with the gear M by the shaft a, which passes through a suitable journal on the standard 0. The handle is preferably connected with the shaft by a pin or other device, which permits the gearing and bowl to continue running for a time after the operator has ceased to turn the crank. The shaft u of the pinion N carries the wormgear 5. The gearing below the plate L is i11- closed in a suitable casing 0, arranged in any convenient way, so as to afford suitable sup port for the shafts u and o.

P is an arm rising from the standard and which supports the tank or can H. The milk or other fluid to be separated is fed into the hollowjournal d on the top of the bowl through the stop-cock b and the feed-cup c, which is provided with a regulating-float.

The construction of the bowl will be understood from Fig. 5. The base E is attached to the body of the bowl by a suitable screwthread. A packing-ring h, of any suitable material, is arranged to prevent leakage. The upper head Q may be secured to the body of the outer bowl by a screw-thread or in any other suitable way. The hollow journal d projects upward from the head Q a suitable distance, so as to engage with the yielding bearing I. This hearing may be constructed in a number of different ways, the yielding feature being preserved in all. In the ar rangement shown the bearing consists of a ring j, having the screws 7t is inserted into it at equal distances apart and each screw being provided with a sliding rod Z, the point of which bears against the surface of the journal. on is a spring located in a recess in the screw, and g is a screw-plug by which the tension of the spring may be adjusted. At its outer end the rod 1 is provided with a head, which limits its inward movement. It will be understood, of course, that the tension may also be varied by turning the screw 70 in or out. Four or more yielding bearing-points may be employed, if preferred. The bearingsurfaces are preferably case-hardened. The springs themselves may be arranged to bear directly on the surface of the journal and any suitable means he adopted for varying their tension. Flat or leaf or other suitable springs may be employed. The inner independent bowl F is supported by the bail n or other suitable device. 19 is a cup which receives the milk through the pipe to, Fig. 5, and delivers it through the pipes q q into the interior of the bowl. as a: are wings which project inward from the wall of the bowl. y is a cone open at its upper end and attached around its lower margin to the wall of the bowl. The outer surface of the inner bowl is smooth, and it is of slightly less diameter than the interior of the outer bowl.

The operation has already been explained in my previous application, SerialNo. 536,413, dated January 28, 1895. The lighter of the separated liquids is discharged through the orifice 0 in the base into the inner annular space R in the receiving-pan G, and thence it finds its way through opening S, Fig. 7, into the delivery-pipe K. A pivoted gate or valve 1", Fig. 9, serves to restrict the size of the orifice 0. The gate is pivoted at z to the base of the outer bowl and is provided with a slot, by which its adjustment may be effected by a screw-driver. The heavier liquid is discharged from the bowl through the holes a and suitable passages into the outer gallery or annular space T in the receiving-pan, and thence it passes through the opening U into the delivery-pipe J. The hole a. communicafes with the pipes d through the passages b c in the base and hub of the bowl.

The worm-shaft u is connected with the shaft at the base of the bowl by a detachable joint, such as a pin engaging in a slot, as in dicated in Fig. 5, and this construction permits the removal of the bowl by raising it upward, the hearing I being located at a suitable distance above the top of the bowl, and by then moving its lower end outward until the shaft (1 can be withdrawn from the bearing by a downward movement of the bowl. By a reversal of these movements the bowl is as readily replaced in the machine, the sliding rods Z yielding sufiiciently to permit either of these operations without requiring that the. bearing should be disturbed in any way'.

I claim- 1. The combination with the revolving bowl of a centrifugal separator, of a shaft connected with the lower portion thereof for driv= ing the same, means to drive said shaft, an independent hollow shaft projecting from the top of the bowl, and yielding bearings for said last-mentioned shaft, said bearing being adapted to yield to lift the hollow shaft and bowl free from the operating-shaft.

2. The combination with the revolving bowl of a centrifugal separator, of a shaft connected with the lower portion thereof for driving the same, means to drive said shaft, an independent rigid hollow shaft projecting from the top of the bowl, and yielding bear ings for said last-mentioned shaft, said hearing comprising three or more equidistant sliding bearing-rods, each provided with a spring which produces a limited upward movement of the rods, substantially for the purpose do scribed.

JOHN J. BERRIGAN.

Witnesses:

C. L. KNEELAND, E. J. KNEELAND. 

